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The DOI matches its Crossref record; 25 of the 25 references it cites were found in a registry or an index.

A Unified Transmission Strategy for TDD/FDD Massive MIMO Systems With Spatial Basis Expansion Model

Xie, Hongxiang, Gao, Feifei, Zhang, Shun, Jin, Shi·2017·IEEE Transactions on Vehicular Technology

Abstract

This paper proposes a unified transmission strategy for multiuser time division duplex (TDD)/frequency division duplex (FDD) massive multiple-input-multiple-output (MIMO) systems, including uplink (UL)/downlink (DL) channel estimation and user scheduling for data transmission. With the aid of antenna array theory and array signal processing, we build a spatial basis expansion model (SBEM) to represent the UL/DL channels with far fewer parameter dimensions. Hence, both the UL and DL channel estimations of multiusers can be carried out with a small amount of training resource, which significantly reduces the training overhead and feedback cost. Meanwhile, the pilot contamination problem in the UL training is immediately relieved by exploiting the spatial information of users. To enhance the spectral efficiency, we also design a greedy user scheduling scheme during the data transmission period. Compared with existing low-rank models, the newly proposed SBEM offers an alternative for channel acquisition without the need for channel statistics and can be applied to both TDD and FDD systems. Various numerical results are provided to corroborate the proposed studies.

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Metadata

Authors
Xie, H., Gao, F., Zhang, S., & Jin, S.
Venue
IEEE Transactions on Vehicular Technology
Published
2017-04
Volume
66
Issue
4
Pages
3170-3184
ISSN
  • 0018-9545 (ISSN-L)
  • 1939-9359
OpenAlex
W2490222774
Cited by
454
References
25
FWCI
33.69
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: A Unified Transmission Strategy for TDD/FDD Massive MIMO Systems With Spatial Basis Expansion Model. https://app.cochat.ai/papers/10.1109/tvt.2016.2594706
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Xie, H., Gao, F., Zhang, S., & Jin, S. (2017). A Unified Transmission Strategy for TDD/FDD Massive MIMO Systems With Spatial Basis Expansion Model. IEEE Transactions on Vehicular Technology. https://doi.org/10.1109/tvt.2016.2594706

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